Window washer unit having spraying means



y 3, 1955 s. LUSTBADER WINDOW WASHER UNIT HAVING SPRAYING MEANS Filed Aug. 1 1951 INVENTOR. J'araue/ [us/40741 BY gigg- IDWLLM KM United States Patent 2,707,292 WINDOW WASHER UNIT HAVING SPRAYING MEANS Samuel Lustbatler, Brooklyn, N. Y., assignor to Associated Development & Research Corporation, New York, N. Y., a corporation of New York Application August 1, 1951, Serial No. 239,739 1 Claim. (Cl. 15--105) This invention relates to a structurally and functionally improved cleaning unit capable of numerous uses but primarily intended for the cleaning of glass surfaces such as windows.

It is an object of the invention to furnish a compact unit of this type which will include an assembly by means of which a complete cleaning operation may be performed; the device being light in weight and easily capable of proper use even by an unskilled person.

An additional. object is that of furnishing an apparatus of this character which will include relatively few parts each individually simple and rugged in construction and capable of ready assemblage to furnish a unit operating for long periods of time with freedom from all difliculties.

With these and other objects in mind, reference is had to the attached drawings illustrating one practical embodiment of the invention and in which:

Fig. 1 is a top plan view of the unit;

Fig. 2 is a partly sectional side elevation thereof;

Fig. 3 is a transverse sectional view taken along the line 3-3 and in the direction of the arrows as indicated in Fig. 2; and

Fig. 4 is an edge view of the device.

In these views the numeral 5 indicates the body of the unit which is conveniently formed of a plastic or any other suitable material. This body is provided with a well portion 6 which may contain any suitable cleaning fluid. The upper end of the well portion may be defined by a collar or extended threaded flange 7. This well portion receives a pumping unit of any desired and acceptable construction. As shown, this portion of the apparatus may embrace a cap 8 conveniently of metal and threaded to engage the threads of flange 7. The cap mounts a body 9 above which a spring projected stem 10 extends. In accordance with conventional teachings,

the stem may terminate in a nozzle head 11 provided with a thumb engaging surface 12.

Preferably body 5 is oval-shaped or, in other words, somewhat flattened to present forward and rear edges. These may be channelled to receive the base portions of blades 13 and 14. The first of these blades, mounted in the front edge, is formed of a material such that it may act as a scraper to remove particles from a surface with out scratching that surface. Blade 14 mounted in the rear edge, is formed of rubber or other suitable flexible material and functions as a squeegee; its edge, as well as the edge of blade 13 extending outwardly a suitable distance beyond the adjacent surfaces of body 5.

As shown, the height of the main body is greater adjacent one edge than adjacent its opposite edge. The flange 7 extends upwardly in the form of an incline from a flattened surface which may extend in a plane defining the shorter edge of body 5. The squeegee blade 14 being associated with the higher edge, it is possible to incorporate in this blade a greater length than would otherwise be feasible and, at the same time, to properly back that blade. Equally im portant is the fact that an inclined. gripping surface is provided by the body in a plane adjacent that into which the nozzle head 11 extends. Therefore an operator may grip the unit adjacent the upper end of blade 14 and will, at the same time, be able to engage actuator 12 with his thumb. Therefore, while holding the apparatus in one hand, it is feasible to reciprocate head 11 and stem 10 to 2,707,292 Patented May 3, 1955 eject a spray of cleaning fluid. Conveniently the outer surface of body 5 is formed with a series of longitudinally extending ribs 15. These will assure that the device will not readily slip from the hand of the user.

In employing a unit of this nature cap 8 is initially dismounted. Well portion 6 may be filled with a cleaning fluid of any proper type. Thereafter, the cap is mounted upon the flange with the body 9 extending within the well. In accordance with conventional technique head portion 11 may be depressed against the action of the spring contained within this assembly. This will serve to project a piston. Thereupon, by releasing the pressure on actuator 12 the spring will raise stem 10. A check valve is ordinarily provided as part of this assembly. Therefore, upon the next depression of stem 10 and head 11, the fluid will not be discharged back into the well 6. Rather it will be ejected in the form of a spray from the nozzle orifice. Accordingly a continuing operation of this nature will result in a coating of cleaning liquid being deposited upon a surface and the operator will have no difliculty in directing the spray to the desired portion of that surface.

Thereafter by shifting the grip on body 5, blade 14 may be caused to traverse the dampened surface. This will result in a cleaning of the latter. If blemish coatings or foreign material is adhering to the surface to be cleaned, then, of course, prior to the spraying and wiping action just described, the user may grip the apparatus so that blade 13 extends forwardly from his hand. By traversing this blade with suflicient force over the surface the coatings from that foreign material may be removed or loosened. Thereafter, by a spraying and wiping action the surface will be completely cleaned.

Thus, among others, the several objects of the invention as aforenoted are achieved. Obviously numerous changes in construction and rearrangement of the parts might be resorted to without departing from the spirit of the invention as defined by the claim.

I claim:

A device of the class described including in combina' tion a body presenting longitudinally extending front and rear edges, said rear edge being longer than said front edge, an upper surface for said body including a face disposed adjacent said front edge and extending substantially perpendicular thereto, said body being formed with a well extending through to said face, a pumping unit mounted upon said face and extending into said well, a reciprocating stern forming a part of said unit and projecting upwardly above said face, an actuator mounted by said stem and lying in a plane higher than that into which said rear edge extends, a nozzle supported by said stem below said actuator and discharging in a direction towards said front edge, an upwardly inclined surface interposed between said face and rear edge and a squeegee blade mounted by said body and projecting outwardly therefrom in line with said rear edge.

References Cited in the file of this patent UNITED STATES PATENTS 464,843 Bagger Dec. 8, 1891 1,930,872 Blackmun -2 Oct. 17, 1933 1,986,248 Bowlzer Jan. 1, 1935 1,986,250 Cole Jan. 1, 1935 2,083,551 Balinger June 15, 1937 2,186,140 Kurtz Jan. 9, 1940 2,436,454 Sensenbach et al Feb. 24, 1948 2,488,682 Rapoport Nov. 22, 1949 2,530,161 Fisher Nov. 14, 1950 FOREIGN PATENTS 422,208 Great Britain I an. 8, 1935 920,280 France Jan. 2, 1947 

